©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
EESA06 Module 4 Exam Practice Questions and Answers
What is 'orogenesis'? - Ans:✔✔-the process of mountain building
Why are there two arcuate ridges above the Mariana Subduction Zone instead of one? - Ans:✔✔-The
volcanic arc has been split in two
Where was the Pacific Plate created? - Ans:✔✔-at East Pacific Rise
Using the interactive globe, find the Mariana Subduction Zone at the boundary between the Pacific (PA)
and Philippine Plate (PH). Which plate is being subducted? - Ans:✔✔-The Pacific Plate
Examine the interactive globe. Compare the seismic activity at the Aleutian Islands (at the PA-NA
boundary near Alaska) and at the Cascadia Subduction Zone (at the JDF-NA boundary near Vancouver
Island). Which of the following is true? - Ans:✔✔-The Cascadia Subduction Zone is far more seismically
active than the Aleutian Subduction zone.
Using the interactive globe, find the plate boundary between the Cocos Plate (CO) and the North
American Plate (NA). Which plate is being subducted? - Ans:✔✔-The Cocos Plate
Examine the interactive globe. The east coast of North America is a passive margin and not a plate
boundary. Would you characterize earthquake activity as... - Ans:✔✔-rare
Page 1/5
, ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
Examine the interactive globe. Find the plate boundary between the Juan de Fuca Plate (JF) and the
North American Plate (NA). How deep are most of the Earthquakes along this boundary? - Ans:✔✔-less
than 33 km
Earthquakes at convergent margins are typically shallower than those at divergent margins - Ans:✔✔-
FALSE
Ocean-ocean collision tends to form large Himalayans-scale mountain belts - Ans:✔✔-FALSE
The safest place to be if near an erupting volcano is down the valleys. - Ans:✔✔-FALSE
Continental crust is destroyed at subduction zones - Ans:✔✔-FALSE
The prime risk of ashfall to human populations is famine - Ans:✔✔-TRUE
Volcanic gases can accumulate in hollows near volcanoes, creating dangerous pockets of air. - Ans:✔✔-
TRUE
Where two oceanic plates converge, the older plate subducts under the younger plate. - Ans:✔✔-TRUE
Lahars can happen any time, include long after the most recent volcanic eruption - Ans:✔✔-TRUE
Most subduction zones are approximately arcuate - Ans:✔✔-TRUE
Lahars can strike any time - Ans:✔✔-TRUE
Page 2/5
FIRST PUBLISH OCTOBER 2024
EESA06 Module 4 Exam Practice Questions and Answers
What is 'orogenesis'? - Ans:✔✔-the process of mountain building
Why are there two arcuate ridges above the Mariana Subduction Zone instead of one? - Ans:✔✔-The
volcanic arc has been split in two
Where was the Pacific Plate created? - Ans:✔✔-at East Pacific Rise
Using the interactive globe, find the Mariana Subduction Zone at the boundary between the Pacific (PA)
and Philippine Plate (PH). Which plate is being subducted? - Ans:✔✔-The Pacific Plate
Examine the interactive globe. Compare the seismic activity at the Aleutian Islands (at the PA-NA
boundary near Alaska) and at the Cascadia Subduction Zone (at the JDF-NA boundary near Vancouver
Island). Which of the following is true? - Ans:✔✔-The Cascadia Subduction Zone is far more seismically
active than the Aleutian Subduction zone.
Using the interactive globe, find the plate boundary between the Cocos Plate (CO) and the North
American Plate (NA). Which plate is being subducted? - Ans:✔✔-The Cocos Plate
Examine the interactive globe. The east coast of North America is a passive margin and not a plate
boundary. Would you characterize earthquake activity as... - Ans:✔✔-rare
Page 1/5
, ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
Examine the interactive globe. Find the plate boundary between the Juan de Fuca Plate (JF) and the
North American Plate (NA). How deep are most of the Earthquakes along this boundary? - Ans:✔✔-less
than 33 km
Earthquakes at convergent margins are typically shallower than those at divergent margins - Ans:✔✔-
FALSE
Ocean-ocean collision tends to form large Himalayans-scale mountain belts - Ans:✔✔-FALSE
The safest place to be if near an erupting volcano is down the valleys. - Ans:✔✔-FALSE
Continental crust is destroyed at subduction zones - Ans:✔✔-FALSE
The prime risk of ashfall to human populations is famine - Ans:✔✔-TRUE
Volcanic gases can accumulate in hollows near volcanoes, creating dangerous pockets of air. - Ans:✔✔-
TRUE
Where two oceanic plates converge, the older plate subducts under the younger plate. - Ans:✔✔-TRUE
Lahars can happen any time, include long after the most recent volcanic eruption - Ans:✔✔-TRUE
Most subduction zones are approximately arcuate - Ans:✔✔-TRUE
Lahars can strike any time - Ans:✔✔-TRUE
Page 2/5
